Scribefire 1.4.2 doesn't publish to WordPress

I used the account Wizard to set up ScribeFire, the Wizard reported success.
Every time I click to publish I get the following error:
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Error with request, the server sent back the following response:
Fault Error:

The API at the URL you entered appears to not exist.
Please make sure that you have the correct url and try again.

newpostcall
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I have deleted and re-configured ScribeFire 2 or 3 times with no change in the result. When I was running the previous version of ScribeFire I could publish to the blog.

Gene